| Business | Phone |
| Alamo Water Refiners Inc 13700 W Us Highway 90, San Antonio 78245 | (210) 677-8400 |
| Chaparral Water Treatment Svc 13423 Blanco Rd 192, San Antonio 78216 | (210) 656-3136 |
| Cite Corp 11031 Wye St 106, San Antonio 78217 | (210) 967-6777 |
| Ecowater Systems 208 E Nakoma St, San Antonio 78216 | (210) 349-2837 |
| Ecowater Systems 2554 Boardwalk St, San Antonio 78217 | (210) 829-1912 |
| H2orizon Inc 3300 Nacogdoches Rd # 200, San Antonio 78217 | (210) 599-7300 |
| Laguna Water Ltd 4940 Broadway St 305, San Antonio 78209 | (210) 525-9390 |
| Lord & Baker Assoc 4135 First View Dr, San Antonio 78217 | (210) 349-5684 |
| Midland Research Laboratories 12002 Warfield St, San Antonio 78216 | (210) 340-9992 |
| Nalco Chemical Co 13333 Blanco Rd 206, San Antonio 78216 | (210) 493-0379 |
| Sweetwater Filtration Systems, Inc. 11031 Wye Road, San Antonio 78217 | (210) 650-4000 |
| Wishing You Well 12610 Nacogdoches Rd, San Antonio 78217 | (210) 599-0042 |
| Alpha Filtronics 7500 Eckhert Rd 200, San Antonio 78240 | (210) 509-2444 |
| Bisco Systems 6323 Mallard Pt, San Antonio 78239 | (210) 590-7955 |
| Gaines Water Softening 7038 Eckhert Rd, San Antonio 78238 | (210) 635-7418 |
| Harvestime Llc 3803 Cove Meadow Dr, San Antonio 78247 | (210) 545-6311 |
| Hydro-Lyte Co 524 Skyforest Dr, San Antonio 78232 | (210) 341-7758 |
| Kinetico 13777 Judson Rd, San Antonio 78233 | (210) 646-7747 |
| Dawn Service & Supply 7259 Us Highway 87 E, San Antonio 78263 | (210) 648-2200 |
| Water Resources Co 8309 Cactus Wren Ln, San Antonio 78255 | (210) 698-8960 |
| Mueller Water Conditioning Inc 12139 Jones Maltsberger Rd, San Antonio 78247 | (210) 490-4040 |
| Purity Water Co 1119 Paulsun St, San Antonio 78219 | (210) 227-3601 |
| River City Water Treatment 87 Basswood Dr, San Antonio 78213 | (210) 308-9355 |
| Scale Free Co Inc 4845 Goldfield, San Antonio 78218 | (210) 661-4810 |
| Texas Water Systems 7223 George Burns St, San Antonio 78240 | (210) 684-2144 |
| Us Filter 5413 Bandera Rd 405, San Antonio 78238 | (210) 523-8181 |
| Vrtex Technologies 5807 Business Park, San Antonio 78218 | (210) 661-8800 |
| Water City 7015 Bandera Rd 12, San Antonio 78238 | (210) 523-1888 |
| Worth Hydrochem Corp 14024 Ferrell Rd, San Antonio 78233 | (210) 650-0510 |
| Aqua Masters Inc 10651 Elmendorf Lavernia Rd, San Antonio 78223 | (210) 635-7109 |
| Bob J Johnson & Assoc 7715 Mainland Dr 115, San Antonio 78250 | (210) 684-7638 |